308                                         MachineBasicBlock *MBB2,  in ComputeCommonTailLength()  argument
312   I2 = MBB2->end();  in ComputeCommonTailLength()
315   while (I1 != MBB1->begin() && I2 != MBB2->begin()) {  in ComputeCommonTailLength()
321           if (I2==MBB2->begin()) {  in ComputeCommonTailLength()
335       if (I2==MBB2->begin()) {  in ComputeCommonTailLength()
359   if (I1 == MBB1->begin() && I2 != MBB2->begin()) {  in ComputeCommonTailLength()
362       if (I2 == MBB2->begin())  in ComputeCommonTailLength()
368   if (I2 == MBB2->begin() && I1 != MBB1->begin()) {  in ComputeCommonTailLength()
404   while (I2 != MBB2->end() && I2->isCFIInstruction()) {  in ComputeCommonTailLength()
633 ProfitableToMerge(MachineBasicBlock *MBB1, MachineBasicBlock *MBB2,  in ProfitableToMerge()  argument
644     auto EHScope2 = EHScopeMembership.find(MBB2);  in ProfitableToMerge()
650   CommonTailLen = ComputeCommonTailLength(MBB1, MBB2, I1, I2);  in ProfitableToMerge()
654                     << " and " << printMBBReference(*MBB2) << " is "  in ProfitableToMerge()
662   if ((MBB1 == PredBB || MBB2 == PredBB) &&  in ProfitableToMerge()
665     unsigned NumTerms = CountTerminators(MBB1 == PredBB ? MBB2 : MBB1, I);  in ProfitableToMerge()
675   if (I1 == MBB1->begin() && I2 == MBB2->begin() &&  in ProfitableToMerge()
676       blockEndsInUnreachable(MBB1) && blockEndsInUnreachable(MBB2))  in ProfitableToMerge()
683   if (MBB1->isLayoutSuccessor(MBB2) && I2 == MBB2->begin())  in ProfitableToMerge()
685   if (MBB2->isLayoutSuccessor(MBB1) && I1 == MBB1->begin())  in ProfitableToMerge()
692   if (AfterPlacement && I1 == MBB1->begin() && I2 == MBB2->begin()) {  in ProfitableToMerge()
700     if (!BothFallThrough(MBB1) || !BothFallThrough(MBB2))  in ProfitableToMerge()
710   if (SuccBB && MBB1 != PredBB && MBB2 != PredBB &&  in ProfitableToMerge()
713       !MBB2->back().isBarrier())  in ProfitableToMerge()
726          (I1 == MBB1->begin() || I2 == MBB2->begin());  in ProfitableToMerge()
1334                                 MachineBasicBlock *MBB2) {  in IsBetterFallthrough()  argument
1340   MachineBasicBlock::iterator MBB2I = MBB2->getLastNonDebugInstr();  in IsBetterFallthrough()
1341   if (MBB1I == MBB1->end() || MBB2I == MBB2->end())  in IsBetterFallthrough()
1346   if (MBB1->isSuccessor(MBB2)) return true;  in IsBetterFallthrough()
1347   if (MBB2->isSuccessor(MBB1)) return false;  in IsBetterFallthrough()